Adoption of InfiniBand Architecture (IBA) or iWARP (Internet Wide Area Remote Protocol) have been widely used in High Performance Computing segment. To simplify the implementation, Open Fabrics Alliance (OFA) is creating a single, open sourced interoperable software stack that supports both transports for Linux. InfiniBand is supported by the Open Fabrics Enterprise Distribution (OFED) software stack and Ethernet is supported by RDMA over Ethernet (iWARP) software stack.Both InfiniBand and iWARP extensions of Ethernet support RDMA (Remote Direct Memory Access) and use different technologies. Figure 1 is a schematic of the software stack being developed by OFA.

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